How many seconds does it take for a car to deliver 4299.1N?

[IDKPhysics101]

A 765.1 kg car accelerates from rest to 20.9 m/s. If the engine can deliver 4299.1 N of force, how many seconds does it take the car to do this?

 

[venkatg]

v = a * t;

we know a = f/m;

t = m * v/f

 

[IDKPhysics101]

t=m*v/f
t=765.1*20.9/4299.1
t=3.71seconds?

 

[venkatg]

Yes, that's right.

 

[IDKPhysics101]

awesome, thanks a lot! i promote you and rock freak to be our class's teacher